It's good practice to keep your expectations very low when you are dealing w/someone in crisis. You just never know what they will or won't do. If you get a card, thank him. They love to be recognized for their efforts.
Enjoy the time you spend with your niece and nephew. They are definitely good distractions!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.